My dear mklora,
You must be misstaken, number 1070 is mate-in-2 from famous, young Tomas! Also your description of the solution does not fit to this problem.
Tomas composes crisp, clear thematic puzzles - not very difficult to solve in my opinion...
In this particular case after 1.Bg5 (so called Novotny theme), white threatens 2.Rxf5# and 2.Nf4# and however black takes on g5 or tries other defences he cannot defeat both threats._________________There are only three kinds of chessplayers - those who can count and those who cannot....